Extension-table.



FLATHER EXTENS|0N TABLE.

APPLICATION FILED AUG.8| 19IZ.

' Patented Nov. 2, 1915.

2 SHEETS-SHEET 1- I l f' V lnvenior: Mark Flaiher,

M. FLATHER.

EXTENSION TABLE.

APPLICATION FILED AUG.8. I912.

Patented Nov. 2, .1915.

2 SHEETS-SHEET 2- lwvenior: Mariz Flaihea,

Wines-sea: I

COLUMBIA ILANOGRAPH cu,,\vAsmNuToN. D. c.

MARK FLATH-ER, or NAsnuA, N EA PSHIR EXTENSION-TABLE;

To all whom it may concern:

Be it known that I, MARK FLATHER, a.

citizen of the United States,pand a resident of'Nashuafcountyof 'Hillsboro, State of N ew Hampshire, have invented an Improvement in Extension-Tables, of which the following description, in connection with the accompanying drawings, is a specification,

like characters on the drawings representing like parts.

This invention relates to extension tables,

and among other objects. provides an im-- proved removable top, and. improved slides for extensibly connecting the top with the pedestalor support of the table.

The character of the invention may'bebest understood by reference to the following de- 3 j by bolts 7 (Fig. 1).

; similar slides 19 the top from the pedestal.

scription of an illustrative embodiment thereof disclosed inthe accompanyingdrawr ings, wherein Figure 1 is a plan of an illustrative table embodying the invention having its top re moved to disclose the construction of the slides beneath the same; Fig. 2 is a vertical section through the slides taken on line 22- of Fig.1; Fig. 3 is a section taken on line 3-3 of Fig. 2; Fig. tonan enlarged scale is a section takenon line M of Fig. 3; Fig. 5 is a vertical section through'the ta-. ble; Fig. 6 is a side elevation of portionsof slides showing their assembled relation; and Fig. 7 is a similar view showing the relation of the slides in the course of the removal of:

Referring to the drawings, the illustra-. tive table shown therein as embodying the invention comprises a pedestal or'support (Fig. 5) split vertically toprovidefsections- 11 of usual-construction having feet 3 at. 1

their lower ends and bridge blocks 5 and 6 at their upper ends secured to. said sections The top of the table comprises main sections 9 and 10 which are adapted to be exv Specification of Letters Patent.

ma e rs. 2, 1915.

Application filed August 8, 1912. j Serial No. '713,958i

' their slides .tomove relatively to theipedestal slides. .To limit this movement the top sl des 11 have stop pins 25 and the pedestal slides 15-,have stop pins 27 arrangedin alinement, so that when the slides 11,- are drawn .Quta predetermined distance the stops 25 :Wlll engage the stops 27 and prevent further extension of'said slides llrelatively to the slides 15. Continued, separation ofthe p v top sections 9 and 10 Wlll drag the pedestal I slides 15 along with the top slides-11' and the .pedestal slides 19 along-with the top slides 17. e ,As; a result, the pedestal sections will 3 separate and their slides will: move rela-.

tivelyfto one another. To limitv the relative 'movementrof thepedestal sections theyhave stops 29 and, 31 for-engagement with one another. j i An important feature of the invention relates to the connection :of one slide with another, whereby the-friction between them j and the work in extending the table is-rednced to a minimum. ;To this end each slide is provided with a guideway typified herein as a track 35 (Fig. 4) preferablyv U shaped to provide upper and lower rails 35?, j 35", sald tracks being seated in a'channel36 (Fig. 2) n a-face of the slide and secured thereto by screws or otherwise as desired.

The opposite face ofthe'next adjacent slide is provided with follower means typified herelngas upper and lowerrollers 37 adapted to travel alongthe rails of the track 35 when the latteris interposed between them.

Said rollers are journaled on studs 39 projecting inward; from brackets 41 secured to; the slide by suitable screws. To assist in supporting the brackets on the, slides the brackets may have portions bent therefrom to present lugs 43 set *intokerfs in the slides. To keepthe rollers on their tracks they may have flanges 45 protected by guards 41. projecting from the brackets 4:1. The engagement of the roller flanges with they sides of thefrailswill prevent lateral movement ofthe slides away fromone an other. The outer faces of'thev brackets 41 may bear against the faces of the next adjacent slides and limit the approach of the slidestoward one-another. The corners of the brackets may be rounded as shown in Fig. 3 to enable'them to readily slide along theslidesopposite thereto. It is highly desirable in'extension tables to detachably connect the top of the table toits pedestal-so thata variety of tops may.

be used on the same type of pedestal, and i so that the table may be conveniently packed for shipment and be readily moved from one I room to another. The track androller connections described lend themselves advantageously to this purpose and I will now de- -scribea simple arrangement of them which cured to. the pedestalsections.

. the top. I sections.

entire lengthsof the slides, but merely along portions of their lengths and are located adjacent the ends of the slides (Fig-1).

Adjacent opposite ends of the slides are sets of rollers each comprising'upper and lower'rollersas described. By this arrangement the slides 11 of the top section 9 are each connected to their respective slides 15v of the'pedestal section 5 by a'track and a set of rollers on one coiiperatmg with a set.

of rollers and a track on the other (Figs. 6 and 7). The upper and lower rollers of each set are not in vertical a'linement, but

. the upper roller of the slide 15 is offset-to .the right from its lower roller (Figs. 3 and 6) and the upper rollerof the set applied to slide 11 is offset to the right of its lower roller (Fig.6) fora purpose to be de-- scribed. When 1t 1s desired to remove the top section-9 from the pedestal it is drawn out from the pedestal, together with its slides 11 until arrested by the engagement of the topslide stopsv25 with the pedestal slide stops 27 (Fig. 6). When said top section has been pulled out this far the inner ends of the tracks of the top' slides 11 will have .passed beyond the upperrollers of the pedestal slides 15, but said tracks will still rest on the lower rollers of said pedestal slides as shownat the left of Fig. v6. When in. this predetermined position, the topslide tracks, being no longer limited by the upper.

rollers of the pedestal slides, permit the top section andwslides to be lifted or rocked in substantially vertical planes transversely to the lengths of the pedestal slides 15 about the upper rollers of the top slides 11 on the tracks of the pedestal slides 15 as fulcra. A slight upward rocking of the top section 9 and its slides will lift the top slide stops 25 up out of alinement with the pedestal slide -stops27. The top slides, being no longer limited by the engagement'of said stops, are

then free to be drawn farther away from the pedestal sufliciently for the top slide rollers to clear the pedestal slide tracks. The top section 9 is secured to end portions of the top slides and therefore tends to rock the top slides in a contra-clockwise direction (Fig. 6)

v from the pedestal. The tracks described .do not extend the relatively to the pedestal slides. To prevent any possibilitv of such rocking when the top and pedestal stops '25 and 27 engage one another to limit the outward extension of the top section the top slide rollers are at a short distance from the ends of their tracks. After the stops have been lifted out of alinement, however, the top slides may be freely drawn to move the top slide rollers beyond the ends of the .pedestal slide tracks. This marks the completion of the separation of the top section and pedestal slides and the; top section. 9 is then completely removed The other top section 10 is provided with a similar arrangement of stops, tracks and rollers to that described in connection with the top section 9 and therefore may be removed in a similar manner.

When it is desired to replace .the top section 9 back on the pedestal it is merely necessary to present the top slide rollers to the pedestal slide. tracks accompanied by a downward tilt of the top slides to enable the top slide stops 25 to come into alinement with the pedestal slide stops27. This movement will bring the top slide tracks to and upon the lower rollers of the pedestal slides and the. top andpedestal slides will then be assembled in position in readiness for anyvdesired extension in use.

The top slide rollers have a sufliciently free contact with the pedestal slide tracks to permit the slight rocking of the top slides which is necessary to enable the top slide stops to pass the pedestal slide stops. To prevent excess rocking of the top slides to avoid cramping the top slide rollers against the pedestal slide tracks and to facilitate the guidance of the top slide stops relative to the pedestal slide stops, guides 27 may be provided for the top slide steps 25. Each of'said guides may conveniently-be substantially U shaped and be set in a recess in the face of the pedestalslide and be secured by a screw or otherwise as desired. The guide preferablyis of a length corresponding to the distanceof the top slide lower rollers .2? are in engagement, to limit the rocking of the top slides relatively to the pedestal slides until after said top slide lower rollers have passed beyond the ends of the pedestal slide tracks. To facilitate the entrance of the top slide stops 25 to the guides 27 the ends of the latter may flare somewhat as at 27 To facilitate the rocking of said top slides relatively to the pedestal slides the roller flange guards 41 projecting from the brackets ll may be rounded as at 41. To enable the top slides 11 to clear the bridge block carrying the pedestal slides 15 the lower inward corners of the top slides 11 may be rounded as at 11. s

It will be observed that the extension lim iting stops are fast on their slides and that there are no latchesor locking devices to beoperated to (detach a top section from the pedestal, but it "is merely necessary to pull the section out and give the same a slight lifting tilt to effectits removal from the pedestal; 7

There will be no danger of giving .the top section an accidental removing tilt. since in use any weight on the table would tend to press the same downward, and to remove the section it is necessary to lift the same upward. t

The track and roller connections for the slides enable the table to be readily extended with ease. There are no wood tongues and grooves liable to swell, stick and render extension difficult. The tracks and rollers are simple and strong in construction, may be readily applied to the slides and effectively hold the same in proper relation.

Having described one embodiment of the invention without limiting the same thereto, what I claim as new and desire to secure by Letters Patent is:

1. An extension table comprising in combination, main top sections, a pedestal therefor, a set of relatively extensible slides connecting each of said sections to said pedestal, and means detachably connecting the slides of each set comprising guideway means and cooperating follower-and-stop-means upon the slides of suchset, said followerand-stop-means and guideway means being relatively locatedand arranged to permit parts of said follower-'and-stop-means to be relatively moved out of engagement with each other to enable the removal of the follower means from said guideway means, upon adjustment of a slide of such section in a vertical plane when substantially at its outward limitof extension away from said other section.

2. An extension table comprising, in com bination, a pedestal; main top sections thereon; a set of relatively extensible slides connecting each of said top sections to said pedestal; and means detachably connecting slides of each set comprising cooperating followers and guide way means, said guide way means having portions for receiving said followers, one of the latter being located and arranged for introduction to and removal from one of said portions and the other of said followers being located and arranged for introduction to and removal from the other portion on adjustment of a slide of a top section in a substantially vertical plane when in a predetermined position of normal outward extension away from said pedestal and the other top section.

3. An extension table comprising, in combination, a pedestal; main top sections supported thereby; a set of relatively extensible slides connecting each of the top sections to said pedestal;"and means detachably con necting slides of. a set comprising cooperating followers and guide way means, said guide way means having portions for receivranged'for introduction to and removal from the other portion on adjustment of one slide in a substantially vertical plane transversely to the length of the other slide when the slides arein a predetermined relation, said slides having provision permitting uninterrupted relative adjustment thereof from any of their positions of extension to said determined relation. v

4:. An extension tablecomprising, in combination, a pedestal; main top sections supported thereby; a set of relatively extensible slides connecting each of the top sections to said pedestal; and meansdetachably connecting slides of a set comprising 00- operating followers and guide way means, said guide way means having portions for receiving said followers, one of the latter being located and arranged for introduction to and removal from one of said portions,v

8 0, preand the other of said followers being located and arranged for introduction to and re moval from the other portion on adjustment of one slide in a substantially vertical plane transversely to the length of the other slide when the slides are in predetermined relation, each of said top sections being adjustably connecting-"slidesof each set compris-i o,

ing cooperating followers and guide way means, said guide way means having portions located and arranged for permittingremoval of said'followers therefrom on ad-v justment of a slide of one section in a verti- 1'15 cal plane when substantially at its outward limit of extension away from said other section. v 6. An extension table comprising, in combination, main top sections; apedestal; a 126 set of relatively extensible slides connecting each of said sections to said pedestal; and means detachably connecting slides of each set comprising cooperating followers and 1 guide way means, the latter having portions'125 located and arranged for permitting removal of said followers therefrom on lifting of one of the slides of a section in a substantially vertical plane transversely to the length of the other slide when the slides are in pre- 130 able to bring its slides in said vpredeterdetermined relation of outward extension, I In testimony whereof, I have signed iny said guide Way means having provision for name to this specification in the presence of preventing dropping of said top sections two subscribing Witnesses.

from the level of the table top when the MARK FLATHER. sections are extended outward away from Witnesses:

one another Withtheir slides in said pre- HENRY T.V\ 1LLIA1\rs,

determined relation. ROBERT H. KAMMLER.

five cents each, by addressing the Commissioner of Patents.

Copies of this patent may be obtained for Washington, B. G. 

